Year annual % growth 1979 9.832138638924178 1980 27.401658250732325 1981 -21.936601323180184 1982 3.5127065640518538 1983 9.756086700981044 1984 0.6762704919696745 1985 8.445314829589876 1986 5.309737801551904 1987 12.268898312081816 1988 10.479090846234485 1989 2.913273158117775 1990 26.33308455648637 1991 17.926022965805416 1992 5.2143016864005745 1993 -5.039906978029833 1994 -3.272875112967853 1995 11.293996136943576 1996 15.036987709792513 1997 28.214287812970497 1998 16.991645862827156 1999 -20.09524069989564 2000 35.60000958352492 2001 -3.100004106788006 2002 2.9000004857703203 2003 -11.400010481547554 2004 -8.799986223850809 2005 11.548554074751948 2006 3.249923392217525 2007 3.4889426146938973 2008 -12.357506743988282 2009 -11.257225782574523 2010 8.437752630092717 2011 6.9787607876436795 2012 24.312890596550616 2013 -13.079794668236886 2014 -6.319191724292665 2015 0.6924238927584128 2016 15.969168168094853 2017 1.4182560896806677 2018 7.7387818925587055 2019 -20.554151285191864 2020 17.51076925131001 2021 11.57876803813744 2022 -10.790112886646057 2023 -1.7235408513727037